Shellac-jar.



Patented Jan. 9, 1917.

IIVI/E/V TOR JJEL ONE.

WITNESS BY 7WW ATTORNEVj JOHN R. L01\TG,'0F ORRVILLE, OHIO,

SHELLAC J' Application filed February 16, 1916.

To all whom it may concern: v 1

Be it known that I, J OHN R. Lone, a citizen of the United States, residing at Orrville, in the county of lVayne and State of Ohio, have invented certain new and useful Improvements in Shellac-Jars, of which the following is a specification.

This invention pertains to a shellac jar, and the invention is of especial utility-in the arts where volatile fluids are used extensively. For example, in making patterns of wood, a bright, hard and glossy coating is required, which is supplied .by applying shellac cut or thinned with alcohol. Atmospheric exposure evaporates the alcohol very quickly and the shellac becomes too thick for use. More alcohol is usually added to thin the shellac but the resultant mixture is not as satisfactory as the first as the shellac loses its gloss. Obviously then, it is a decided advantage to prevent evaporation and loss of this volatile fluid as much as possible and avoid reconversion of the shellac, but an ordinary cover for the jar'is impracticable for this purpose as constant use of a brush dipped in the shellac makes it diflicult to keep the seating surfaces clean and air tight as well'as from adhering to each' other, so that the cover may be easily removed. Therefore, I have devised the present jar to overcome the troubles experienced heretofore, having also for my object, sim-- plicity and cheapness of construction, convenience of handling of the parts, and cleanliness, in mind.

In the accompanying drawings, Figure 1 is a vertical section centrally through my improved shellac jar, and a side view of a brush supported therein. Fig. 2 is a detail view of the neck and handle for the cover, including a valved closure therefor. Fig. 3 is a side view of the brush with its supportingpiece folded parallel with the handle.

The jar comprises a concaved base part 2; having a relatively low circular border flange 3 and a higher inner wall 4 of circular outline, both said flange and wall being integral with the base or bottom 2 and made of glass, preferably. Metal or porcelain may be used instead of glass, but glass affords the user of the jar the constant opportunity to see the'condition' and level of the contents, and therefore, the bell-shaped cover 5 which I use is also made of glass,

preferably. This cover has an open bottom Specification of Letters Patent.

Serial No. 78,583.

7 and thelower edge 6 thereof is adapted to seat upon baseQ centrally within the annular channel 7 between flange 3 and wall 4,'and a sealing liquid 8 confined within said channel serves to make this cover absolutely air-tight at its bottom. Water is the preferred sealing liquid, but where the device is exposed to freezing temperatures a non freezing and non-inflammable liquid or other material may be substituted.

The central chamberl'or reservoir 9 is designed to hold the shellac, and a brush 10 to apply the shellac is supported centrally within chamber 9 by a folding cross piece 11 pivoted at its center to the handle 12 of the Assicinon or onE-roun'rn T0 JOHN G; ,GIB SO1\T, or AKRON, omo. r J a Pa r-.6 1 Jan. 9, 191w.

brush, the notched ends 14: of the cross piece resting upon the upper edge of wall 4:.-

When the brush is not supported in this way, the cross piece 11 may be folded parallel with the handle 12, see Fig. 3. The removable cover 5 is of suflicient height to accommodate the brush 7 handle when supported in its vertical or upright position centrally within the shellac chamber, and the upper end of this cover has a reduced neck and handle 15 which is tubular and open to the interior but normally closed to the out- 7 7 side by a stopper 16. The function of this I tubeand stopper is to supply or exhaust a small amount of air momentarily during seating and removal of the cover in and from the sealing liquid in the base channel 7 Otherwise, the trapped air within the cover would cause the sealing liquid to overflow flange 3 or to splash, especially if the cover be dropped suddenly, and the vacuum created by uplift of the cover would hamper removal operations and disturb and carry more or less of the sealing liquid with it. Seatin of the cover compresses the air and lifts t e stopper, providing it be not too heavy nor tightly seated, but removal of the cover requires a slight displacement of the stopper to admit air to break the vacuum, and such displacement may be easily efliected by one or more fingers of the hand in grasping handle 15. In lieu of this form of stopper, I may use a stopper 17 having a spring-pressed valve 18 V centrally therein and adaptedjto open inwardly of the cover and be self-acting to relieve the vacuum when the cover is lifted. Relief under'pressure from within is obtained by either form the neck of the cover is made With an extreme flare to avoid a Wedging fit of the tapered stopper.

In addition to the advantages set forth, the present construction affords a practical safeguard for the highly inflannnable alcohol, especially as the bell-shaped cover 5 telcscopes and incloses the shellac reservoir entirely, and the prevention of evaporation of the alcohol effects a considerable saving Where a device of this kind is used constantly as in pattern-making shops. Moreover, the spaced and telescoped relations of the cover to the Wall 4 permits the brush to be wiped upon-the upper edge of the Wall Without affecting sealing results or causing the cover to stick to the shellac deposited upon said edge.

What I claim is:

1. A jar having concentric chambers to hold a volatile liquid and a sealing material Copies of this patent may be obtained for five cents each, by addressing the in segregation, and a cover for the inner said reservoir removably supported in sald 'seat having a valved opening for air supply and relief in removing and replacing oper ations of the cover.

3. A jar having concentric chambers open at their top, and a'chambered cover seated in the outer chamber having a valved stopper to admit and exhaust air in removing and seating operations of said cover.

In testimony Whereof I afi'ix my signature in presence of two Witnesses.

JOHN R. LONG.

Witnesses:

LEVI BRENNEMAN, N. H. STRONG.

Commissioner of Patents,

Washingtomn O.

, 25 2. A jar having a central reservoir bor dered by a channeled seat, and a cover for. 

